Results 101 to 110 of about 41,207 (287)

Synergistic Pyro‐Phototronics and Structural Anisotropy in CsAg2I3/GaN Heterostructures for High‐Performance Polarization‐Sensitive UV Photodetectors

Advanced Science, EarlyView.
The development of polarization‐sensitive ultraviolet photodetectors is limited by poor heterojunction quality and low polarization sensitivity. This study integrates synthesized CsAg2I3 single crystals with intrinsic non‐centrosymmetry into van der Waals heterojunction devices, demonstrating pronounced pyro‐phototronic effect.
Yalin Zhai, Siqi Wang, Peng Guo, Songling Feng, Peng Wan, Jilong Tang, Caixia Kan, Hui Li, Daning Shi, Mingming Jiang   +9 more
wiley   +1 more source

Efficient Electrocatalytic Conversion of CO2 to Pure Formic Acid Solutions via Strain‐Engineered Bismuth Nanosheets

Advanced Science, EarlyView.
Tensile‐strained bismuth nanosheets (TS‐BiNs) achieve a formate Faradaic efficiency of 92% at −1000 mA cm−2 and enable stable production of pure formic acid (HCOOH) in a solid‐state electrolyte reactor. Theoretical calculations reveal that the introduced strain lowers the energy barrier for *OCHO intermediate formation, fundamentally enhancing the ...
Shiqi Li, Yuefeng Zhang, Panzhe Qiao, Cuo Wu, Xinya Tian, Yufeng Xu, Yun Zhang, Peng Wang, Tingting Li, Muhammad Afaq, Xinlin Luo, Tang Wang, Chunxiao Liu, Zi‐You Yu, Chuan Xia, Min‐Rui Gao, Zhen‐Yu Wu   +16 more
wiley   +1 more source

Transient stimulated Raman scattering spectroscopy and imaging

Light: Science & Applications
Stimulated Raman scattering (SRS) has been developed as an essential quantitative contrast for chemical imaging in recent years. However, while spectral lines near the natural linewidth limit can be routinely achieved by state-of-the-art spontaneous ...
Qiaozhi Yu, Zhengjian Yao, Jiaqi Zhou, Wenhao Yu, Chenjie Zhuang, Yafeng Qi, Hanqing Xiong   +6 more
doaj   +1 more source

Optimization of Split Transmitter-Receiver Digital Nonlinearity Compensation in Bi-Directional Raman Unrepeatered System

Applied Sciences, 2018
A theoretical model of the nonlinear signal-to-noise interaction (NSNI) in a bi-directional Raman amplified system with receiver-side digital back-propagation (DBP) or split-DBP is given, which is helpful for the design of such a system.
Qiang Zheng, Zhilin Yuan, Yuan Li, Wei Li   +3 more
doaj   +1 more source

Programmable Hydration Pathways Enable Reconfigurable Ionic Thermoelectrics for Energy Harvesting and Thermal‐Tactile Interaction

Advanced Science, EarlyView.
Programmable hydration pathways enable reconfigurable ionic thermoelectrics in polyquaternium hydrogels. By coupling microscopic solvation, mesoscale water channels, and macroscopic boundary control, hydration‐gated protonics decouples thermopower, response speed, and stability.
Zehao Zhao, Yun Shen, Dongyan Xu
wiley   +1 more source

Boosted decision trees for non-resonant background removal in hyperspectral CARS microscopy

JPhys Photonics
Coherent anti-Stokes Raman scattering (CARS) is a nonlinear optical process used for spectroscopy and label-free chemical imaging. CARS signals can be orders of magnitude stronger than those of its incoherent counterpart, spontaneous Raman scattering ...
John Shafe-Purcell, Aaron D Slepkov
doaj   +1 more source

Coulomb attraction driven spontaneous molecule-hotspot pairing enables universal, fast, and large-scale uniform single-molecule Raman spectroscopy

Opto-Electronic Advances
Raman spectroscopy offers a great power to detect, analyze and identify molecules, and monitor their temporal dynamics and evolution when combined with single-molecule surface-enhanced Raman scattering (SM-SERS) substrates.
Lihong Hong, Haiyao Yang, Jianzhi Zhang, Zihan Gao, Zhi-Yuan Li   +4 more
doaj   +1 more source

Synchrotron-based UV resonance Raman scattering for investigating ionic liquid-water solutions

Condensed Matter Physics, 2019
This work shows that bulk ionic liquids (ILs) and their water solution can be conveniently investigated by synchrotron-based UV resonance Raman (UVRR) spectroscopy.
C. Bottari, B. Rossi , A. Mele, A. Damin, S. Bordiga, M. Musso, A. Gessini, C. Masciovecchio   +7 more
doaj   +1 more source

Relation between squeezing of vacuum fluctuations, quantum entanglement and sub-shot noise in Raman scattering

, 2012
A completely quantum description of Raman process is used to investigate the nonclassical properties of the modes in the stimulated, spontaneous and partially spontaneous Raman process.
Krepelka, Jaromir, Pathak, Anirban, Perina, Jan   +2 more
core   +1 more source

Reinforcing Oxygen Activation of Spinel Oxide via Mn─O Covalency Engineering for VOCs Oxidation

Advanced Science, EarlyView.
A MnCo spinel catalyst with weakened Mn─O covalency was synthesized via a hard‐template method. The reduced Mn─O covalency facilitates localized electron redistribution, promoting the activation of both molecular oxygen and lattice oxygen, and thereby enabling the efficient and complete oxidation of VOCs (ethyl acetate, toluene, and propane).
Gan Li, Ruochen Zhou, Qianqian Chen, Guobo Li, Xiang Tu, Fengbo Yu, Wenming Liu, Jian Ji, Honggen Peng   +8 more
wiley   +1 more source